Math

posted by B8

Solve the equation for d

0.2(d-6)=0.3d+5-3+0.1d

I had d=-16

Work:
1. distribute
2. 0.2d-1.2=0.3d+5-3+0.1d
3. 0.2d=0.4d+3.2
4. -0.2d=3.2
5. divide
6. d= -16
I even did a check
0.2(d-6)=0.3d+5-3+0.1d
0.2(-16-6)=0.3(-16)+5-3+0.1(-16)
0.2(-22)=0.3(-16)+5-3+0.1(-16)
-4.4=-4.4

Is this correct? Thanks for checking my work

  1. Kg

    Correct

  2. B8

    Thanks because I thought I was correct but my friend got 5 1/3 for the same work
    doing0.2d-1.20=.40d+2
    +1.2 to each side
    then taking 0.40d to each side
    getting0.6=3.20
    divide each side by0.6 giving her 5 1/3
    so where did se go wrong, so I can help her out

  3. Ms. Sue

    0.2d - 0.4d does not equal 0.6


    0.2d-1.20=.40d+2

    0.2d - 0.4d = 2 + 1.2

    -0.2d = 3.2

    d = 3.2/-0.2

    d = -16

  4. B8

    Thank you.

  5. Ms. Sue

    You're welcome.

  6. Dilnoza

    0.2(d-6)=0.3d+5-3+0.1d

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